Apparatus for washing barytes.



PATENTED DEC. 25, 1906 W. R.' MACKLIND.

APPARATUS FOR WASHING BARYTBS. APPLICATION FILED SEPT. B, 1906.

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without liability of waste or overwashing the fresh water as it entered the tank.

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APPARATUS FOR WASHING BARYTES.

Specification of Letters Patent. Application filed September 8,1906. Serial No. 333.809.

4 No. 839,493. Patented Dec. 25,1906.

T at whowt it may concern.-

Be it known that LTVIL'LIAM R. MAoxLIND, a citizen of the United States, residing at Mineral Point, l/Vashington county, Missouri, have invented a certain new and useful Improvement in Apparatus for \Vashing Barytes, of which the following is a full, clear, and exact description, such as will enable 1 others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, form- 1 ing part of this specification, in wh destroying the high color and spoiling a portion of the barytes.

The object of the present invention is to provide an apparatus by which barytes can be washed absolutely free from sulfuric acid in a short space of time, approximately onehalf hour, and also prevent any of the barytes from being lost during'the washing operation or from being overwashed.

The apparatus which I have herein shown as embodying the features of my invention consists of a tank or receptaele 1 to receive the barytes, said tank being provided with an agitator 2, which is preferably rotated by gears 3 and i, the gear 4 being connected to the shaft 5, provided with a pulley 6, which may be driven by any suitable power. (Not shown.) Leading from the tank 1 is a discharge-pipe 7 in communication with a pump 8, which causes the barytes to pass from the tank up through a conveyerpipe 9. This pipe 9 empties into a receptacle or trap 17, arranged above a tank 18, said receptacle being provided with radially-extending tubes 19, having spreading nozzles 20 at their lower ends, which are located inside of the tank 18. A pipe for supplying fresh water also enters the trap 17, as shown in the drawings, said pipe being provided with a valve 16 for controlling the flow of water therethrough. The bottom of the trap 17 is substantially conical, and at the center thereof is a cup 12, into which the ends of the pipes 9 and 15 extend, said cup as well as the trap and tubes 19 being preferably formed of lead. As the barytes enters the cup 12 from the pipe 9 it will be acted-upon by the fresh water from pipe 15, said water causing the particles of barytes to separate, so that each particle will be washed, thus removing part of the sulfuric acid. The particles of barytes in the cup 12 are of course kept in a state of constant agitation by the fresh water, so that they will flow over-the edge of said cup with said water and drop onto the conical-shaped floor of the trap, down which they roll to the tubes 19. The water and barytes pass out of the trap through thetubes 19, and as the particles of barytes leave the tubes through the spreading-nozzles 20 they will be separated as they enter the tank 18. Said tank is provided with an inverted conical bottom 21, and as the specific gravity of the barytes is greater than that of the water which also enters the tank from the tubes 19 ich Figure 1 is a side elevational view of an apparatus constructed in accordance with my inventionfor cleaning barytes. Fig. 2 is a i vertical longitudinal sectional view through one of the cleaning-tanks, and Fig. 3 is a top plan view of said tank.

This invention relates to machines for cleaning barytes, and has for its object to provide an apparatus by which sulfuric acid can be washed from powdered and bleached barytes in a short space of time and also barytes, and thus destroying its color. As is well known, powdered barytes is prepared by grinding the ore to an impalpable powder and then mixing it with sulfuric acid. This is then boiled and bleached until all discoloring-matter is reduced, and the barytes is pure white, but contains a large percentage of sulfuric acid. The apparatus heretofore used for removing the sulfuric acid from the barytes consisted of a tank in which the barytes was placed and through which water i ran slowly enough not to agitate the barytes sufficiently to cause it to overflow with the water as it passed out of the upper end of the tank. WVith an apparatus of this description it took from ten to twelve hours to wash barytes, as it was necessary that the water should fiow very slowly to prevent the barytes from passing out of the tank with the waste water; but even when the water was allowed to flow slowly through the tank some of the barytes would pass out with the waste water, and thus belost. Furthermore, it was thoroughly washed, as the mass at the bottom of the tank was washed more quickly than the mass near the top of the tank on account of it being first acted upon by the Accordthe bottom of the tank was apt to be overwashed, thereby the barytes will settle toward the vertex the bottom 21. The circulation of the water, however, has caused the barytes to be thoroughly rinsed. Within the tank and spaced away from the walls thereof is an element which I term a weir-tube and which is designated by the reference-numeral 22. This weirtube 22 cooperates with the wall of the tank 18 to form an annular space 23 within the tank, so that the barytes will be directed downwardly by the current of the water which must pass through said annular space and into the open lower end 24. of the weir-tube. The water will then be directed upwardly through the weir-tube, so as to enter the perforated discharge-pipe 25, having an outlet to a drain or sewer. The difference in the specific gravity of the barytes and water causes the barytes to settle at the bottom of the tank, and thus prevents it from being carried by the water through the dischargepipe. At the vertex of the conical bottom 21 of the tank 18 is a discharge-pipe 26, through which the barytes passes into an inj ector 27, the quantity of barytes that enters the injector being governed by the valve 28. The injector-nozzle 29 is also valved and is supplied with water through the pipe 30 from a suitable source. (Not shown.) Leading from the injector 27 is a pipe 9% corresponding to the pipe 9, leading from the pump 8. The barytes is forced through this pipe 9 into a second trap 17 corresponding to the trap 17 and having all of the accessories described as cooperating with said trap, so that the cleansing operation is repeated. From the trap 17 the barytes passes to a tank 18 corresponding to the tank 18, and, if desired, a third trap 17 together with a tank 18*, may be provided, as well as the accessories cooperating therewith, so that a third washing can take place. It will of course be understood that I reserve the right to multiply the number of these tanks as occasion may require. The last tank, however, will beprovided with a discharge-tube 31, emptying into a receptacle 32, from which the cleansed barytes is removed.

By referring to Fig. 3 it will be observed that the weir-tube is mounted inside of the tank in a novel manner, this being accomplished by providing the tank with an ap proximately rectangular frame 33, preferably constructed of angles, so that the flanged upper edge 34: of the weir-tube will rest upon the angles, and thus permit said tube to be removed or set in place in a convenient manner. As the tank is subjected to considerable pressure by the water therein, I find it desirable to strengthen the walls, preferably by employing angle-braces 35 at convenient points on the outside of the walls of the tank.

From the foregoing description it will be apparent that I have devised an apparatus which is entirely automatic in its operation of I and which will insure a uniform cleansing of the barytes due to the fact that each particle is separated and acted upon by the water. It will also be apparent that the extent to which the barytes is washed will be entirely under the control of the operator, who can set the valves 16, 16 and 16 to the desired degree, so as to admit a-predetermined-quantity of barytes and water through the several pipes, tubes, tanks, &c. Attention isalso di rected to the fact that in order to obtain the best results the water shouldflow slowly through the pipes, tanks, &c., so as to not violently agitate the barytes as it is being treated, inasmuch as a too violent agitation would cause some of the barytes to pass off through the perforated discharge-pipe 25v with the waste water. 1

While I have herein shown the apparatus as comprising means for pumping the barytes into the traps where it is acted upon by the fresh water, if desired, the tank 1 could be located in a higher plane than the trap 17, so that gravity would carrythe barytes into said trap and the other traps and tanks could be so arranged that the barytes would be carried by gravity from one tank into the neXt trap.

I have not herein claimed the method for washing barytes, as the same forms the subject-matter of a pending application, Serial No 233,692, filed by me November 21, 1904.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. An apparatus for washing barytes comprising a tank, an open-ended tubular-shaped member arranged inside of said tank and spaced away from the walls thereof, a receptacle arranged at the upper end of said tank to receive the barytes, means for con veying water into said receptacle to partially wash the barytes therein, and conduits lead ing from said receptacle to .conduct the water and barytes into the annular space in the tank between the inner wall thereof and said tubular-shaped member. i

2. An apparatus for washing barytes comprising a tank, a receptacle arranged at the upper end of said tank and provided with an approximately conical-shaped bottom, conduits for conveying water and barytes into said receptacle, tubes leading from said receptacle and terminating inside of said tank, said tubes being provided with distributingnozzles and means for causing the barytes which enters the tank from said tubes to collect together and the waste water to pass out of the tank.

3. An apparatus for washing barytes, comprising a tank, a receptacle arranged at the upper end of said tank and provided with an approximately conical-shaped bottom, a cup at the center of said receptacle, conduits for conveying water and barytes into said cup,

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tubes leading from said receptacle and terminating inside of said tank, said tubes being provided with distributing-nozzles and means for causing the barytes which enters the tank to collect together at the bottom thereof.

4. An apparatus for washing barytes, comprising a plurality of tanks, receptacles arranged at the upper ends of said tanks for receiving barytes and being provided with inclined bottoms, conduits for supplying water v walls thereof, a receptacle located at the upper end of said tank and provided with a conical-shaped bottom, a cup at the center of said receptacle, conduits for conveying water and barytes into said receptacle, and radiallyextending pipes leading from said receptacle and provided at their lower ends with distributing-nozzles which are located between the inside of the tank and said openended tube.

6. An apparatus for washing barytes comprising a plurality of washing-tanks, receptacles arranged at the upper ends of said tanks for receiving barytes, conduits for con ducting the water into said rece tacles, manually-operated means for control ing the flow of water through said conduits, radiallyextending tubes for conveying the water and barytes from said receptacles into said tanks, means for causing the water to circulate through said tanks, means for causing the particles of barytes to collect together at the bottoms of said tanks, means for conducting barytes from the bottom of one tank into the receptacle that is located above the adjacent tank, and manuallyoperated means for controlling the quantity of barytes which enters said receptacles.

In testimony whereof I hereunto afiix my signature, in the presence of two witnesses, this 5th daywof September, 1906.

WILLIAM R. MAOKLIND. 

